Coniugazione del verbo inglese
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Verbo regolare: book - booked - booked

Affermazione

Forma semplice	Forma con V-ing
I must book you must book he must book we must book you must book they must book	I must be booking you must be booking he must be booking we must be booking you must be booking they must be booking
Perfetto	Perfetto con V-ing
I must have booked you must have booked he must have booked we must have booked you must have booked they must have booked	I must have been booking you must have been booking he must have been booking we must have been booking you must have been booking they must have been booking

Negazione

Forma semplice	Forma con V-ing
I mustn't book you mustn't book he mustn't book we mustn't book you mustn't book they mustn't book	I mustn't be booking you mustn't be booking he mustn't be booking we mustn't be booking you mustn't be booking they mustn't be booking
Perfetto	Perfetto con V-ing
I mustn't have booked you mustn't have booked he mustn't have booked we mustn't have booked you mustn't have booked they mustn't have booked	I mustn't have been booking you mustn't have been booking he mustn't have been booking we mustn't have been booking you mustn't have been booking they mustn't have been booking

Forma interrogativa

Forma semplice	Forma con V-ing
must I book? must you book? must he book? must we book? must you book? must they book?	must I be booking? must you be booking? must he be booking? must we be booking? must you be booking? must they be booking?
Perfetto	Perfetto con V-ing
must I have booked? must you have booked? must he have booked? must we have booked? must you have booked? must they have booked?	must I have been booking? must you have been booking? must he have been booking? must we have been booking? must you have been booking? must they have been booking?

Forma interro-negativa

Forma semplice	Forma con V-ing
mustn't I book? mustn't you book? mustn't he book? mustn't we book? mustn't you book? mustn't they book?	mustn't I be booking? mustn't you be booking? mustn't he be booking? mustn't we be booking? mustn't you be booking? mustn't they be booking?
Perfetto	Perfetto con V-ing
mustn't I have booked? mustn't you have booked? mustn't he have booked? mustn't we have booked? mustn't you have booked? mustn't they have booked?	mustn't I have been booking? mustn't you have been booking? mustn't he have been booking? mustn't we have been booking? mustn't you have been booking? mustn't they have been booking?